HP OfficeJet 4635 e-All-in-One Printer, HP Instant Ink & Amazon Dash Replenishment ready (B4L04A) HP Printer Choose an ink replenishment service - Let your printer track usage and have ink delivered before you run out. Either reorder Original HP 61 ink cartridges only when you need them through Amazon Dash Replenishment, or save up to 50% by paying for pages printed through HP Instant Ink.